I have a handful of single Polycom handsets hanging off Z1's and Z3's nailing up a AutoVPN tunnel back to our DC.
The Polycom handsets are registered back to the Broadsoft VSP with the routes accessible only through the VPN tunnel. I believe the advertised routes are all correct.
Voice, Video and registrations all work as expected, with the exception of some sites whereby registration fails to renew causing the handset to become unavailable to incoming calls. Outgoing calls from the handset out are never a problem.
Where do I begin to troubleshoot this issue? Anyone have experience or ideas on what I can check or troubleshoot?